Home / 1,260,758.38-1,739,812.11-687,798.40

Finding the Fourth Proportional to 1,260,758.38, 1,739,812.11 and 687,798.40

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Solution

The fourth proportional to 1,260,758.38, 1,739,812.11 and 687,798.40 is: 949,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,758.38 : 1,739,812.11 = 687,798.40 : x
  2. Step 2: Convert to fraction form
    1,260,758.38/1,739,812.11 = 687,798.40/x
  3. Step 3: Cross multiply
    1,260,758.38x = 1,739,812.11 × 687,798.40
  4. Step 4: Simplify right side
    1,260,758.38x = 1,196,639,985,558.62
  5. Step 5: Solve for x
    x = 1,196,639,985,558.62/1,260,758.38
  6. Step 6: Final answer
    x = 949,143.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.